DAC Shootout Starts This Weekend


Okay...in another thread I promised to do a side-by-side evaluation of the Audiobyte HydraVox/Zap vs the Rockna Wavelight. Due to the astonishing incompetence of DHL this has been delayed. At the moment, I have a plethora of DACs here and am going to do a broader comparison.

I am going to do a compare of the Rockna Wavelight, Rockna Wavedream Signature, Audiobyte HydraVox/Zap, Chord Hugo 2, Chord Hugo TT2, Bricasti M3, Bricasti M1 Special Edition, Weiss 501 and the internal DAC card for an AVM A 5.2 Integrated amp as a baseline.

For sake of consistency, I am going to use that same AVM integrated amp driving Vivid Kaya 45s. I may branch out and do some listening on other speakers (Verdant Nightshade of Blackthorn and/or Wilson Benesch Vertexes) but want to use the Vivids for every compare as they are the fullest range speakers I have here. For sake of consistency I will use a Chord 2Go/2Yu connected via an Audioquest Diamond USB as a renderer. The only exception is the Hugo 2 which has a 2Go directly attached to it. I will use a Roon Nucleus+ as a server in all cases.

My plan is to use the same five songs on every DAC; In a Sentimental Mood from Duke Ellington and John Coltrane, Be Still My Beating Heart from Sting, Liberty from Anette Askvik, Duende from Bozzio Levin Stevens and Part 1 of Mozart String Quartet No 14 in G Major from the Alban Berg Quartet. The intent is to touch on different music types without going crazy.

I will take extensive notes on each listening session and write up a POV on the strengths of each unit. I am going to start this this Friday/Saturday and will be writing things up over the next month or so. If you have thoughts, comments or requests, I will be happy to try and accommodate. The one thing I am not going to do is make the list of songs longer as that has an exponential impact on this and make everything much harder. If and when other DACs come in on trade I may add to the list through time.
128x128verdantaudio

Showing 4 responses by antigrunge2

My experience withh delta Sigma dacs is that they benefit substantially from better clocking. The preference for R2R evaporates if you get a 10m reference clock controlling the upsampling DAC. Just a thought….
At the risk of being repetitive: it is much more the implementation of the individual design than the basic architecture (R2R, FPGA, Delta Sigma)that differentiates dacs: i.e. quality of clocking and power supplies( foremost), quality of the noise rejection on digital inputs, design of attenuator (if used as a preamp), presence of op-amps or capacitors in the signal path, direct coupling of output stages and on and on. I very much question the ability to differentiate between the different chip sets, be they TI/Burr Brown, AKM, ESS Sabre et al. in an optimised setting on sound quality. Assuming optimal clock accuracy it is really the differences in the analogue domain that determine dac sound quality.
@verdantaudio,

case in point: that’s why reclockers like the InnuOS Phoenix actually have a value. Even better is the scenario where you can connect server and DAC via USB with a 10m OCXO or rubidium clock optimising the DAC clock. Since the DAC on asynchronous USB actually slaves the server, not only do you get a reclocked USB link but also the highest accuracy clock for the actual d to a conversion in the DAC. It’s why Esoteric and DCM offer dedicated clocks in their stacks

@verdantaudio 

It’d be interesting to have your views on external clocking. In my experience with Delta Sigma upsampling DACs, having an external high quality 10m reference makes a significant difference even when internal Dac’s clock is already high standard. The likes of MSB, DCM, Esoteric et al seem to agree whereas the effect on R2R dacs seems less pronounced.

And btw, the advantage when using USB extends to the connection as well as the server which is slaved to the DAC.